/*
 * CDDL HEADER START
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the License). You may not use this file except in
 * compliance with the License.
 *
 * You can obtain a copy of the License at
 * http://www.sun.com/cddl/cddl.html and legal/CDDLv1.0.txt
 * See the License for the specific language governing
 * permission and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL
 * Header Notice in each file and include the License file
 * at legal/CDDLv1.0.txt.
 * If applicable, add the following below the CDDL Header,
 * with the fields enclosed by brackets [] replaced by
 * your own identifying information:
 * "Portions Copyrighted [year] [name of copyright owner]"
 *
 * Copyright 2007 Sun Microsystems Inc. All Rights Reserved
 * CDDL HEADER END
 */

package cn.collin.commons.codec;

/**
 * idea from com.sun.portal.desktop.encode;
 * 
 * This class contains a utility method for encoding a html text string so that
 * it may be display in browser.
 * 
 * @author collin.code@gmail.com
 * 
 */
public class HTMLEncoder {
	public String encode(String text) {

		StringBuffer escaped = new StringBuffer();

		for (int i = 0; i < text.length(); i++) {
			char c = text.charAt(i);
			switch (c) {
			case '<':
				escaped.append("&#60;");
				continue;
			case '>':
				escaped.append("&#62;");
				continue;
			case '&':
				escaped.append("&#38;");
				continue;
			case '"':
				escaped.append("&#34;");
				continue;
			default:
				escaped.append(c);
				continue;
			}
		}
		return escaped.toString();
	}
}
